Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors {which may be heated} moving materials in stationary chambers {, e.g. troughs} the axis of rotation being vertical or steeply inclined
Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors {which may be heated} moving materials in stationary chambers {, e.g. troughs} the axis of rotation being vertical or steeply inclined